Combined telegraph and clock system



(No Model.) 4 Sheets-Sheet 1.

- (J. E. BUELL.

GOMBINED TELEGRAPH AND CLOCK SYSTEM. Patented June 12,1883.

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4 Sheets-Sheet 2.

(No Model.)

0. E. BUELL.

COMBINED TELEGRAPH AND CLOCK SYSTEM.

Patented June 12,1883.

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4 Sheets-Sheet 3.

(No Model.)

0. E. BUELL.v

COMBINED TELEGRAPH AND CLOCK SYSTEM. No. 279,327.

Patented June 12, 18.83.

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(No Model.) 4 Sheets-Sheet 4. G. E. BUELL. COMBINED TELEGRAPH AND GLOGK SYSTEM.

No, 279,327. Patented June '12, 1883..

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CHARLES E. BUELL, OF NICKY HAVEN, CONNECTICUT.

COMBINED TELEGRAPH AND CLOCK SYSTEM.

SPECIFICATION forming part of Letters Patent No. 279,327, dated June 12, 1883.

Application filed March 15, 1889. (No model.)

. My invention relates to combining electricclocks and communicating'te]egraphs upon one and the same normally-closed electric circuit in such a manner as to give more certainty and accuracy than has been heretofore obtained in transmitting time over circuits of considerable length, and to the transmission of time-signals and telegraphic signals by such means that they will not conflict with each other; and it consists in the combination, with.

. a main electric circuit, of a controlling-clock,

a series of cloclostations, each of which is pro vided with a clock which depends for the progressive movement of-its hands around the dial upon the action of a local circuit, or made operative by the action of a relay included in the main circuit and adapted to respond only to the action of the controlling-clock, which may vary the tension of the circuit or reverse the currents charging the circuit, preferably the latter mode.

My invention further consists in the combination, upon the same normally-closed electric circuit used to actuate and control a series of electric clocks through the intermediate action of relays adapted to respond to reversals of the currents charging the circuit, of two or more relays with neutral armatures, and ad justed to respond to rapid variations of the tension of said main circuit.

My invention further consists in certain novel combinations and sub-combinations, which will be more fully described hereinafter.

Figure 1 represents the pendulum C of a regulator-clock arranged to open and close the circuit of the local battery L B by passing its point into and out of the mercury contained in the dish d, the action of the local circuit reversing the currents charging. the main line by. the intermediate operation of the circuit controlling magnet C M, which is described in my previous application.

I do not confine myself to the mode of relines.

qversing the currents upon the main circuit,

shown herewith, as other and well-known methods maybe substituted for the one shown; and I am aware that the currents may be re versed upon the main line without the intermediate controlling-magnet.

Fig. 2 represents an outlying station in which a clock and a telegraphic apparatus are combined to work separately or simultaneously without conflicting with the operation of either. The telegrapharelay X It has a neu-. tral armature, and is of ordinary construction, and is adapted to respond to variations oi the tension of the circuit (by a distant station) by means of the retractile spring and condenser, the condenser serving to dissipate the retained magnetism which is observable in magnets included in a circuit whose tension is varied, and which is prolonged in its cessation, and an obstacle to sharp action of the relay, unless dissipated by the condenser or its wellknown equivalents. The resistance R is an adjustable resistance normally out of circuit. The key is of ordinary construction, and arranged to interpose the resistance in and withdraw it from the main circuit when manipulated for transmitting telegraphic signals thereby. The action of the neutral armature of the relay N B opens and closes the circuit of the local battery L B for making operative a sounder electro-magnet, which may be of ordinary construction and adjustment, the local circuit of battery L B being shown in dotted struction may be employed, I have shown a preferred form having two helices of insulated wire upon each leg of the magnet-core. The clock C is operated by a magnet in a second local circuit, -L B, when the armature of relay 1? R is changed in its position by the reversals of the currents charging the circuit, which occurs at predetermined periods by the action of pendulum C, (shown in Fig. 1, and described,) and by its action operating the clock or clocks C". As the reversals of the.current upon the main circuittend to weaken, if not rupture, the contact of the armature of the relay N R and make it possible to produce false signals, I have passed a circuit from local battery L B through the lower helix of the magnet S M.

Although a sounder of ordinary con- This circuit is, however, shunted away from I I do not confine myself to the devices and the magnet S M when the armature of relay 1? R is in the position shown. As the polarized armature of the relay 1? R will start from its contact before the neutral armature will rupture its contact and the sounder-magnet S M respond, the current of local battery L B is passed through the extra helix of the soundermagnet, retaining it and preventing false vibrations or signals. In Fig. 2 the circuit of local battery L B" is shown over broken lines through the key and over the armature of rclay N R and following spring 8, which preserves contact during a partial break due to reversals of the current upon the line, but which does not preserve the contact when the relay-armature is fully retracted.

I am aware that the sounder-magnet S M and electric clock C-- may be operated from one cal battery.

Fig. 3 represents a central station, as shown in Fig. 1., and described, with way-stations 1, as shown in. Fig. 2, and described, and way station 2, like that shown in Fig. 2, except in the arrangement of the circuit from the local battery L 13", which in this view is shown as passing from the local circuit as a derived circuit without passing through the key and over the neutral armature of relay N It.

Fig. t represents a railway-station. The clock 0* is shown above the platform and in view of passengers and passing trains, the telegraph apparatus in the station being included in the same main circuit with the clock-controlling relay, as shown in Fig. 2, and described, the telegraph-office being looped into the line in the ordinary manner, the key being, however, in the shunt-circuit around an adjustable resistance, for varying the circuit-tension in transmission, the relay P R for actuating the clock 0 being contained in the case with the clock, and the local batteries L B and L B placed at convenient points and connected by suitable wires, as shown in Fig. 2, and de scribed.

By this mode of combining electric clocks and a telegraph system upon one normally closed main line, messages may be sent and standard time indicated with certainty at each station without the signals of one sort conflict ing with the proper transmission and produc tion of the other signals.

arrangement of circuits and devices for carrying my invention into practice as shown herewith.

I reserve the right to claim in another application any improvement disclosed in this application and not now claimed.

Vhat I claim as my invention is- 1. A main line, a battery or batteries for charging said main line, a regulator or control ling clock, and devices for transmitting timesignals over said main line at predetermined intervals, a series of stations along said main line, each provided with a transmitting-key, a relay electro-magnet and a sounder electromagnet in a local circuit adapted to transmit and receive telegraphic signals, and a clock at each station adapted to be regulated to correct time by the said transmitted time signals, whereby the said clocks at stations may be ad justed to correct time over a line usedfor message-telegraphs.

2. The combination, with a main electric circuit and devices adapted to automaticallytransmit time signals over said circuit, of a series of stations, each provided with a transmitting key and relay electro magnet adapted, respectively, to transmit and receive telegraphic signals, and a clock at each station adapted to be made operative by a local circuit, and devices whereby said clock is regulated to correct time by said transmitted time signals through the intermediate action of said local circuit, substantially as described.

3. The combination, with a main circuit and devices for automatically transmitting timesignals over said circuit without interrupting the continuity of said circuit, of a series of stations, each provided with ,a relay electro-magnet, a sounder electro-magnet for receiving and a key for transmitting signals other than time signals, and apparatus at each station adapted to respond to said transmitted time-signalsfor controlling a clock at each, substantially as de scribed.

CHARLES. E. BIIELL.

Witnesses l E. ill. HEATON, J. R. BIDDLE. 

